Sunnaudio’s Nucleus NU-1 preamp pedal ranges from crystal cleans to high gain

Need a compact preamp pedal that can deliver the gain?

Sunnaudio Nucleus

Image: Sunnaudio

Sunnaudio has launched its Nucleus NU-1, a dual analogue boost and preamp that promises punchy, cutting tones ranging from clean to high gain.

The pedal acts as a two-channel preamp, and sports a secondary footswitch to change between the high and low gain sides. Each has an independent level control, allowing you to kick above the rest of the mix for a solo, or have a lower gain part be brought up to match your high-gain tone. The other footswitch bypasses the unit.

The low-gain channel ranges from a crystalline clean tone to a broken-up-overdrive sound, while the high-gain goes from pushed clean to saturated distortion, offering up to 60dB of gain.

The centre of the pedal is dominated by a large gain control which, along with the smaller tone knob and ‘focus’ knob, the two channels share. This ‘focus’ control adjusts sub-harmonics and shapes your midrange for, unsurprisingly, a more focused tone.

The pedal has been designed to deal with sounds from both guitar and bass, and sports a balanced TRS output. It can be powered by a standard 7.5v – 12v external DC adapter or 9v battery.

The Nucleus NU-1 lists for $285, and is available over at


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